<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>全局选择器</title>
    <style>
        /* 选择body中的所有的[包括body]的标签 */
        *{
            color: blue;
            /* 背景颜色 */
            background-color:chartreuse;
        }
    
    
    </style>
</head>
<body>
    <div>div</div>
    <span>span</span>
    <p>p</p>
</body>
</html>